diff --git a/plum/tests/service_test.py b/plum/tests/service_test.py
index 49c4d58546..5af3ef7b72 100644
--- a/plum/tests/service_test.py
+++ b/plum/tests/service_test.py
@@ -27,6 +27,7 @@ class ContainersTestCase(ServiceTestCase):
         foo.start()
 
         self.assertEqual(len(foo.containers), 1)
+        self.assertEqual(foo.containers[0]['Names'], ['/foo_1'])
         self.assertEqual(len(bar.containers), 0)
 
         bar.scale(2)
@@ -34,6 +35,10 @@ class ContainersTestCase(ServiceTestCase):
         self.assertEqual(len(foo.containers), 1)
         self.assertEqual(len(bar.containers), 2)
 
+        names = [c['Names'] for c in bar.containers]
+        self.assertIn(['/bar_1'], names)
+        self.assertIn(['/bar_2'], names)
+
 
 class ScalingTestCase(ServiceTestCase):
     def setUp(self):